Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 4h 38m at 11:21 pm (0.8 ft)
Next high tide (tomorrow) : 5:29 am (8.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:5610.211:1511.34:40-1.24:56-0.96:047:15New Moon1Tue
2Wed11:4810.65:33-1.55:51-1.26:057:13New Moon2Wed
3Thu12:0911.512:4010.96:24-1.76:45-1.46:067:12Waxing Crescent3Thu
4Fri1:0311.31:3111.07:14-1.57:38-1.36:077:10Waxing Crescent4Fri
5Sat1:5611.02:2210.98:04-1.28:33-1.16:087:08Waxing Crescent5Sat
6Sun2:5010.53:1510.68:56-0.79:29-0.76:097:06Waxing Crescent6Sun
7Mon3:479.84:1010.19:50-0.110:29-0.26:107:04First Quarter7Mon
8Tue4:479.25:099.710:480.511:310.36:127:03First Quarter8Tue
9Wed5:498.76:099.411:471.06:137:01First Quarter9Wed
10Thu6:518.47:109.112:340.612:501.36:146:59First Quarter10Thu
11Fri7:538.38:109.11:380.81:531.46:156:57Waxing Gibbous11Fri
12Sat8:508.39:059.22:380.82:501.36:166:55Waxing Gibbous12Sat
13Sun9:408.59:539.33:300.63:401.16:176:54Waxing Gibbous13Sun
14Mon10:258.710:379.44:140.54:240.96:186:52Waxing Gibbous14Mon
15Tue11:058.911:179.54:540.45:040.76:196:50Full Moon15Tue
16Wed11:429.111:559.55:300.35:410.66:216:48Full Moon16Wed
17Thu12:179.26:030.36:160.56:226:46Full Moon17Thu
18Fri12:309.512:499.36:350.36:510.46:236:44Full Moon18Fri
19Sat1:059.41:219.47:070.47:270.36:246:42Waning Gibbous19Sat
20Sun1:409.21:549.47:410.58:040.36:256:41Waning Gibbous20Sun
21Mon2:179.12:309.48:180.68:450.46:266:39Waning Gibbous21Mon
22Tue2:578.93:119.48:590.89:310.46:276:37Waning Gibbous22Tue
23Wed3:448.73:599.49:450.910:220.56:286:35Third Quarter23Wed
24Thu4:368.54:539.410:371.011:180.56:306:33Third Quarter24Thu
25Fri5:358.55:539.511:351.06:316:31Third Quarter25Fri
26Sat6:388.66:589.712:200.412:370.96:326:30Waning Crescent26Sat
27Sun7:438.98:0410.01:240.11:430.66:336:28Waning Crescent27Sun
28Mon8:469.49:0710.42:28-0.22:480.06:346:26Waning Crescent28Mon
29Tue9:4310.010:0510.83:26-0.73:47-0.56:356:24Waning Crescent29Tue
30Wed10:3610.511:0011.04:20-1.14:42-1.16:366:22New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 2:25 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South Harpswell, ME?

South Harpswell, ME is currently in a neap phase. Tonight's moon is 52% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are South Harpswell, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Harpswell, ME?

Tide predictions for South Harpswell, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Harpswell, ME?

Tide data for South Harpswell, ME is sourced from NOAA Station #8417647. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8417647.

What is the moon phase in South Harpswell, ME tonight?

Tonight the moon over South Harpswell, ME is Third Quarter (52% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA